Updates: making ghost_module behavior an enum based parameter.  Removed ghost_source and ghost_tool.  (enforcing my coding style, sorry :)
Updates: making ghost_module behavior an enum based parameter.  Removed ghost_source and ghost_tool.  (enforcing my coding style, sorry :)
Merge branch 'GhostSheetViewing' of https://github.com/calband/calchart into GhostSheetViewing